<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>实现1~100相加求和</title>
</head>
<body>
    <script>
        var i =1;
        var result = 0;
        while(i <= 100){
            result += i;
            i++;
        }
        document.write('1~100的数的和为：' + result);
    </script>
</body>
</html>